Question 206258
.12x+.08(7,000-x)=764
.12x+560-.08x=764
.04x=764-560
.04x=204
x=204/.04
x=5,100 invested @ 12%.
7,000-5,100=1,900 invested @ 8%.
Proof:
.12*5,100+.08*1,900=764
612+152=764
764=764